One way to distinguish the ways we DO things is with HANDLES or BUTTONS.

Buttons are discrete, handles continuous. With a button you initiate and let go; with a handle you grab on and contol. Button clicks are more likely symbolic - we string them together. Handles are more analogic - we gesture and indicate.

Bring to class two sketches (8-1/2 x 11); one of a ``handle one of a ``button".

Sketch enough of the context so it is clear where and who might use it.

List the features that make this a good or bad example - what you like or don't.

Tips:

You will present these to everyone in the class. Use a Sharpie.

The drawing should be self-explanatory. Use as few words as possible.

Make it clear how the user interacts with it. Where are the user's hands?